Question
Question: An atom of mass number A and atomic number Z emits successively ana-particle, b-particle and g-rays....
An atom of mass number A and atomic number Z emits successively ana-particle, b-particle and g-rays. The mass number and atomic number of the end product are
A
A, Z + 1
B
A – 1, Z – 4
C
A – 4, Z – 1
D
A – 4, Z + 2
Answer
A – 4, Z – 1
Explanation
Solution
A¢ = A – 4 + 0 + 0 = A – 4
Z¢ = Z – 2 + 1 + 0 = Z – 1